ABAP Select data from SAP table FVCS_PRC_DETN_ACT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FVCS_PRC_DETN_ACT table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to FVCS_PRC_DETN_ACT. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the FVCS_PRC_DETN_ACT table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_FVCS_PRC_DETN_ACT TYPE STANDARD TABLE OF FVCS_PRC_DETN_ACT,
      WA_FVCS_PRC_DETN_ACT TYPE FVCS_PRC_DETN_ACT,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <FVCS_PRC_DETN_ACT> TYPE FVCS_PRC_DETN_ACT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FVCS_PRC_DETN_ACT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FVCS_PRC_DETN_ACT
  INTO TABLE IT_FVCS_PRC_DETN_ACT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FVCS_PRC_DETN_ACT
*  INTO TABLE @DATA(IT_FVCS_PRC_DETN_ACT2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_FVCS_PRC_DETN_ACT INDEX 1 INTO DATA(WA_FVCS_PRC_DETN_ACT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FVCS_PRC_DETN_ACT ASSIGNING <FVCS_PRC_DETN_ACT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FVCS_PRC_DETN_ACT>-SENDER_KALNR = 1.
<FVCS_PRC_DETN_ACT>-RECEIVER_KALNR = 1.
<FVCS_PRC_DETN_ACT>-POSTING_DATE = 1.
<FVCS_PRC_DETN_ACT>-OBJECTTYPE = 1.
<FVCS_PRC_DETN_ACT>-SENDER_CCODE = 1.

ENDLOOP.

LOOP AT IT_FVCS_PRC_DETN_ACT INTO WA_FVCS_PRC_DETN_ACT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FVCS_PRC_DETN_ACT-RECEIVER_CCODE, sy-vline,
  WA_FVCS_PRC_DETN_ACT-SENDER_PRCTR, sy-vline,
  WA_FVCS_PRC_DETN_ACT-RECEIVER_PRCTR, sy-vline,
  WA_FVCS_PRC_DETN_ACT-SENDER_UNIT, sy-vline,
  WA_FVCS_PRC_DETN_ACT-RECEIVER_UNIT, sy-vline,
  WA_FVCS_PRC_DETN_ACT-CURTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FVCS_PRC_DETN_ACT you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_FVCS_PRC_DETN_ACT TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_FVCS_PRC_DETN_ACT INTO WA_FVCS_PRC_DETN_ACT.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ALPHA, internal->external for field SENDER_PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FVCS_PRC_DETN_ACT-SENDER_PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FVCS_PRC_DETN_ACT-SENDER_PRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECEIVER_PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FVCS_PRC_DETN_ACT-RECEIVER_PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FVCS_PRC_DETN_ACT-RECEIVER_PRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field BDATJ
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FVCS_PRC_DETN_ACT-BDATJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FVCS_PRC_DETN_ACT-BDATJ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_FVCS_PRC_DETN_ACT-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FVCS_PRC_DETN_ACT-MEINS.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_FVCS_PRC_DETN_ACT_STR, 
SENDER_KALNR TYPE STRING,
RECEIVER_KALNR TYPE STRING,
POSTING_DATE TYPE STRING,
OBJECTTYPE TYPE STRING,
SENDER_CCODE TYPE STRING,
RECEIVER_CCODE TYPE STRING,
SENDER_PRCTR TYPE STRING,
RECEIVER_PRCTR TYPE STRING,
SENDER_UNIT TYPE STRING,
RECEIVER_UNIT TYPE STRING,
CURTYPE TYPE STRING,
TRANSFER_PRICE TYPE STRING,
CURRENCYKEY TYPE STRING,
PRICE_UNIT TYPE STRING,
TRANSFER_PRICE_TYPE TYPE STRING,
NO_TRANSFER_PRICE_FOUND TYPE STRING,
POPER TYPE STRING,
BDATJ TYPE STRING,
RUN_ACT TYPE STRING,
RUN_APPL TYPE STRING,
CATEG TYPE STRING,
PTYP TYPE STRING,
KALNR_PMAT TYPE STRING,
BVALT TYPE STRING,
PROCESS TYPE STRING,
LBKUM TYPE STRING,
MEINS TYPE STRING,
SALK3 TYPE STRING,
ESTPRD TYPE STRING,
ESTKDM TYPE STRING,
WAERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FVCS_PRC_DETN_ACT_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_FVCS_PRC_DETN_ACT_STR-SENDER_KALNR sy-vline 
WA_FVCS_PRC_DETN_ACT_STR-RECEIVER_KALNR sy-vline 
WA_FVCS_PRC_DETN_ACT_STR-POSTING_DATE sy-vline 
WA_FVCS_PRC_DETN_ACT_STR-OBJECTTYPE sy-vline 
WA_FVCS_PRC_DETN_ACT_STR-SENDER_CCODE sy-vline 
WA_FVCS_PRC_DETN_ACT_STR-RECEIVER_CCODE sy-vline 
WA_FVCS_PRC_DETN_ACT_STR-SENDER_PRCTR sy-vline 
WA_FVCS_PRC_DETN_ACT_STR-RECEIVER_PRCTR sy-vline 
WA_FVCS_PRC_DETN_ACT_STR-SENDER_UNIT sy-vline 
WA_FVCS_PRC_DETN_ACT_STR-RECEIVER_UNIT sy-vline 
WA_FVCS_PRC_DETN_ACT_STR-CURTYPE sy-vline 
WA_FVCS_PRC_DETN_ACT_STR-TRANSFER_PRICE sy-vline 
WA_FVCS_PRC_DETN_ACT_STR-CURRENCYKEY sy-vline 
WA_FVCS_PRC_DETN_ACT_STR-PRICE_UNIT sy-vline 
WA_FVCS_PRC_DETN_ACT_STR-TRANSFER_PRICE_TYPE sy-vline 
WA_FVCS_PRC_DETN_ACT_STR-NO_TRANSFER_PRICE_FOUND sy-vline 
WA_FVCS_PRC_DETN_ACT_STR-POPER sy-vline 
WA_FVCS_PRC_DETN_ACT_STR-BDATJ sy-vline 
WA_FVCS_PRC_DETN_ACT_STR-RUN_ACT sy-vline 
WA_FVCS_PRC_DETN_ACT_STR-RUN_APPL sy-vline 
WA_FVCS_PRC_DETN_ACT_STR-CATEG sy-vline 
WA_FVCS_PRC_DETN_ACT_STR-PTYP sy-vline 
WA_FVCS_PRC_DETN_ACT_STR-KALNR_PMAT sy-vline 
WA_FVCS_PRC_DETN_ACT_STR-BVALT sy-vline 
WA_FVCS_PRC_DETN_ACT_STR-PROCESS sy-vline 
WA_FVCS_PRC_DETN_ACT_STR-LBKUM sy-vline 
WA_FVCS_PRC_DETN_ACT_STR-MEINS sy-vline 
WA_FVCS_PRC_DETN_ACT_STR-SALK3 sy-vline 
WA_FVCS_PRC_DETN_ACT_STR-ESTPRD sy-vline 
WA_FVCS_PRC_DETN_ACT_STR-ESTKDM sy-vline 
WA_FVCS_PRC_DETN_ACT_STR-WAERS sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.